Ståhl, E. G., Persson, B., & Prescher, F. (1990). Effect of provenance and spacing on stem straightness and number of stems with spike knots in Pinus sylvestris L., Northern Sweden and countrywide models. Swedish Univ. of Agricultural Sciences.
Chicago-Zitierstil (17. Ausg.)Ståhl, Erik G., Bengt Persson, und Finnvid Prescher. Effect of Provenance and Spacing on Stem Straightness and Number of Stems with Spike Knots in Pinus Sylvestris L., Northern Sweden and Countrywide Models. Uppsala: Swedish Univ. of Agricultural Sciences, 1990.
MLA-Zitierstil (9. Ausg.)Ståhl, Erik G., et al. Effect of Provenance and Spacing on Stem Straightness and Number of Stems with Spike Knots in Pinus Sylvestris L., Northern Sweden and Countrywide Models. Swedish Univ. of Agricultural Sciences, 1990.